I accumulate them like gems,; they are my precious.

It seems dramatic, but let me lure you inhear me out.

But this onere is a tough one.

It crawls into your skin, takes control of you, and will make you guess where you belong, waver between what did you intended to do, and what did actually did happen.

You will look at everything from the outside, never knowing if it's your imagination that tricked you, or if it's the people who know of this weakness tryaking to make it work for themadvantage of it.

Nurturing it by inadvertenceYou will inadvertently nurture it, until it devours you whole.

Didn'tHave you guessed it?

No matter whathow good something could be good, trust me, it will work against all odds to make it bad.

How do I explain that to people who don't believe in theis "deep down"?

There is no explanation,. I know that much, for I am one of them.

How do I manage to make every slight detail in thismy life go astray?

It will come without warning to me, without asking me,; it will just take me.

Strangely, it will be a relief, relieving me from the tired, stringing threads of lonely questions that my life has been surrounded by for a long time ago, tin since long ago. The final stroke onto a painting full of steep brushstrokes.

Not really sure what you mean by "the tired...time ago" part, so I guessed.

No more asking myself what I could have done better, or what on earth gothad gotten into me, for I will be underneath it, t all. The earth, in her narcissism, will finally control what was disturbing the harmony above her, and in her generosity, keep a wounded soul from hurting herself.

Pretty sure "narcissism" isn't the right word here, but also not sure what you really want to say, so I left it alone.

iI know it's lame

Always capitalize the first word of a sentence or title, and always capitalize "I" for first person pronoun, unless you have a deliberate reason to leave it uncapitalized (in poetry, for example).

Everyone has pequirks, something that sets them apart from the rest, something that says, "Yes, I exist, I'm here," and after I disappear, I would have already stained your memories with what distinguishes me.

"Perks" are usually used in reference to a benefit or advantage of some situation, such as "office perks". "Quirks" are used to describe a unique, sometimes strange, characteristic of a person or thing.

It crawls into your skin, takes control of you, and will make you guess where you belong, between what did you intended to do, and what did actually happened.

Using the past tense of the verbs are more colloquial. Using "did <VERB>" is correct for past tense, but is often used to emphasize an action.

Nurturing it by inadvertencetly, until it devours you whole.

"Inadvertence," while grammatically correct, is much less commonly used than the adverb and adjective forms.

Strangely, it will be a relief, the tired, string threads of lonely questions that my life has been surrounded by for a long time ago, the final stroke onto a painting full of steep brushstrokes.

"string threads" is not commonly used, as "string" is not a commonly used adjective to describe threads. "Stringy" threads would be more acceptable.
"Brushes" refers to the tool used to paint, and "brushstrokes" refers to the resulting painted texture.

No more asking myself what I could have done better, what on earth got into me, for I will be underneath it, the earth in her narcissism will finally control what was disturbing the harmony above her, and in her generosity keep a wounded soul from hurting herself.